1866.] mr. f. p. pascoe on the coleoptera of penang. 52/ 



Neocerambyx. 

 Neocerambyx, J. Thomson, Essai, &c. p. 194. 



Neocerambyx lambii. 



N.fuscus; prothorace in medio longitudinalter bisulcato, trans- 

 verse profunde stria to, striis subcurvatis, regularibus ; elytris 

 velutinis, griseo-argenteis, apicib us for titer bispinosis. 



Dark brown; head broadly grooved between the eyes, with a 

 strongly marked longitudinal crest dividing it, under each antennary 

 tuber a deep fovea ; prothorax with two longitudinal grooves meet- 

 ing anteriorly, space between them and the sides regularly and 

 deeply striated transversely, the striae slightly curved, these and the 

 impressions on the head clothed more or less with glossy yellowish 

 hairs ; scutellum triangular ; elytra closely covered with a velvety 

 greyish-silvery pubescence, varying in large dark and silvery patches 

 according to the light, apices strongly bispinose ; body beneath and 

 legs dark brown, with a greyish pile ; antennae in the male very long, 

 the third and fourth joints nodose, the fifth and some of the folldw- 

 ing with a short spine at the apex. Length 16 lines. 



Nearly allied to N. aurifaber, White, but the transverse striae on 

 the prothorax fewer, larger, and not at all twisted or intermixed as 

 in that species. 



Neocerambyx ? intricatus. 



N.fuscus; prothorace prof unde foveato-impresso, interstitiis in- 

 tricato-reticulatis ; elytris subtiliter griseo pubescentibus, se- 

 ricatis, apicibus oblique truncatis, ad suturam mucronatis. 



Dark brown, mostly covered with a delicate greyish pubescence 

 having a silky texture, particularly on the elytra; head finely 

 grooved between the eyes, a transverse ring-like impression in front ; 

 prothorax covered with deep slightly oblique foveae, the intervals 

 forming a twisted net-like series of lines clothed with greyish hairs; 

 scutellum triangular ; elytra somewhat silky, uniformly greyish, but 

 varying in certain lights, the apices oblique, with the sutural angle 

 mucronate ; body beneath and legs brown, shining, with a sparse 

 greyish pile; antennae (S) twice as long as the body, with the 

 third joint two or three times as long as the scape, scarcely nodose, 

 (?) scarcely longer than the body, third joint twice as long as the' 

 scape, the fifth and following joints dilated on one side. Length 

 1 7 lines. 



This species can only be provisionally retained in Neocerambyx, 

 as it forms an exception on account of the long third joint of the 

 antennae, but the whole subfamily requires a thorough revision ; all 

 I can see clearly is that we have either too many or too few genera. 

 Since M. J. Thomson proposed Neocerambyx in his ' Essai,' he has 

 separated from it Hoplocerambyx, Pachydissus, Newm., Conotkorax, 

 and Tapinolachnus, leaving the characters he would now assign to it 

 doubtful. .V. lambii, however, and several others, including the 



